title: Ossified pseudomeningocoele following laminectomy: case reports and review of the literature.
abstract: To date, four cases of ossified extradural pseudocyst have been described, the first being in 1951 by Verbiest who described unusual forms of compression of the cauda equina including a case of a lumbo-sacral extradural cyst and a case of 'knotting' of a caudal nerve root. We present an additional two cases.
authors.affiliation: Department of Surgical Neurology, National Hospital for Neurology and Neurosurgery, London, UK.
authors.forename: M A
authors.initials: MA
authors.lastname: Ishaque
authors.forename: H A
authors.initials: HA
authors.lastname: Crockard
authors.forename: J M
authors.initials: JM
authors.lastname: Stevens
mesh_terms: D000368:Aged; D001860:Bone Plates / Q000009:adverse effects; D001863:Bone Screws / Q000009:adverse effects; D005500:Follow-Up Studies; D006801:Humans; D007796:Laminectomy / Q000009:adverse effects* / Q000379:methods; D008159:Lumbar Vertebrae; D008279:Magnetic Resonance Imaging; D008297:Male; D008588:Meningocele / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D011183:Postoperative Complications; D012086:Reoperation; D013168:Spondylolisthesis / Q000601:surgery